jni_generator: Pass object parameters as JavaParamRef.

content/browser/media/android/media_drm_credential_manager.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/media/android/media_drm_credential_manager.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 42 matching lines @@
   // First reset the L3 credential.
   if (!ResetCredentialsInternal(media::MediaDrmBridge::SECURITY_LEVEL_3)) {
     // TODO(qinmin): We should post a task instead.
     base::ResetAndReturn(&reset_credentials_cb_).Run(false);
   }
 }
 
 // static
 void ResetCredentials(
     JNIEnv* env,
-    jclass clazz,
-    jobject j_media_drm_credential_manager_callback) {
+    const JavaParamRef<jclass>& clazz,
+    const JavaParamRef<jobject>& j_media_drm_credential_manager_callback) {
   MediaDrmCredentialManager* media_drm_credential_manager =
       MediaDrmCredentialManager::GetInstance();
 
   ScopedJavaGlobalRef<jobject> j_scoped_media_drm_credential_manager_callback;
   j_scoped_media_drm_credential_manager_callback.Reset(
       env, j_media_drm_credential_manager_callback);
 
   MediaDrmCredentialManager::ResetCredentialsCB callback_runner =
       base::Bind(&MediaDrmCredentialManagerCallback,
                  j_scoped_media_drm_credential_manager_callback);
@@ skipping 35 matching lines @@
   media_drm_bridge_->ResetDeviceCredentials(reset_credentials_cb);
   return true;
 }
 
 // static
 bool MediaDrmCredentialManager::RegisterMediaDrmCredentialManager(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace content